Facts
Messier 81 (also known as NGC 3031 or Bode’s Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. Due to its proximity toEarth, large size and active galactic nucleus (which harbors a 70 million M☉supermassive black hole), Messier 81 has been studied extensively by professionalastronomers. The galaxy’s large size and relatively high brightness also make it a popular target for amateur astronomers. Messier 81 was first discovered by Johann Elert Bode in 1774. Consequently, the galaxy is sometimes referred to as “Bode’s Galaxy”. In 1779, Pierre Méchainand Charles Messier reidentified Bode’s object, which was subsequently listed in the Messier Catalogue.
Date: 14.03.2015
Location: Backyard, Asker, NO
Camera: SBIG STT-8300 Mono CCD
Optics: Takahashi FSQ-106EDX III 530mm f/5.0
Exposure: L=19×600 sec, RGB=19×300 sec (2x2binned)
Guiding: MaximDL, SBIG Selfguiding FW
Post processing: MaximDL, PixInsight
Comment: A new edit with the same data as the previous image. This time processed in PixInsight. This image is cropped and rotated.
Date: 14.03.2015
Location: Backyard, Asker, NO
Camera: SBIG STT-8300 Mono CCD
Optics: Takahashi FSQ-106EDX III 530mm f/5.0
Exposure: L=19×600 sec, RGB=19×300 sec (2x2binned)
Guiding: MaximDL, SBIG Selfguiding FW
Post processing: MaximDL, PixInsight
Comment: A new edit with the same data as the previous image. This time processed in PixInsight.
Date: 14.03.2015
Location: Backyard, Asker, NO
Camera: SBIG STT-8300 Mono CCD
Optics: Takahashi FSQ-106EDX III 530mm f/5.0
Exposure: L=19×600 sec, RGB=19×300 sec (2x2binned)
Guiding: MaximDL, SBIG Selfguiding FW
Post processing: MaximDL, Photoshop CS5
Date: 12.09.2012
Location: Backyard, Asker, NO
Camera: DSLR Canon EOS 7D
Optics: Celestron SCT 8″ 1260mm f6,3
Exposure: 17 x 5 min lightframes
5 x 5 min darkframes
ISO: 1600
Guiding: Celestron NexGuide
Post processing: PhotoShop CS5
Håvard's Observatory 